SHUNTS || WHY BABY CRYING IN IS IMPORTANT AFTER DELIVERY || DUCTUS ARTERIOSUS || DUCTUS VENOSUS ||

Описание к видео SHUNTS || WHY BABY CRYING IN IS IMPORTANT AFTER DELIVERY || DUCTUS ARTERIOSUS || DUCTUS VENOSUS ||

​ @LOVE MEDICS
FETAL CIRCULATION


Fetal circulation Introduction
The circulatory system of the fetus
Fetoplacental circulation
It Includes
Umbilical cord,
blood vessel in the placenta
It carry the fetal blood



Shunt
DUCTUS VENOSUS
Umbilical vein - Inferior vena cava
DUCTUS ARTERIOSUS
pulmonary artery - Aorta
FORAMEN OVALE
RT atrium - LT atrium




REMNANT
Ductus arteriosus
Anatomical closure: 2-3 wks
Functional closure: 10 to 96 hrs after birth
Ductus venosus
Anatomical closure : 3 – 7 days
Functional closure: Afterbirth
Foramen ovale
Anatomical closure: 11- 1 yr
Functional closure: Afterbirth

Changes – fetus & adult
Ductus arteriosus
Ligamentus arteriosus
Ductus venosus
Ligamentus venosus
Foramen ovale
Fossa ovalis
Umbilical artery
Umbilical ligament
Umbilical vein
Ligamentum teres
Fetal circulation - overview
Fetal circulation
Oxygenated blood = placenta
= umbilical vein = fetus  liver
+
Deoxygenated blood from the portal vein - LIVER

LIVER = Ductus venosus = IVC & RT atrium foramen ovale = Lt atrium = Lt ventricle = ascending aorta = all parts of the body
Rt atrium = Rt ventricle = pulmonary. artery = Ductus arteriosus = descending aorta = Hypogastric artery = umbilical artery = placenta

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